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Sample Sequencer® 5

Sample Sequencer® 5
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Sample Sharing Controller Time Share Four Analyzers Among Multiple Process Streams  Improves efficiency—sequences up to four (4) analyzers from one interface The Sample Sequencer® 5 is a microprocessor-based system capable of electronically switching a ma ximum of eight sample streams between four analyzers. Time-sharing of analyzers lowers both acquisition and ongoing maintenance and reagent costs while providing performance advantages.  Eliminates errors between analyzers and helps keep reagent costs to a minimum  Intuitive touchscreen interface and easy-touse widgets (icons) let you manage streams simply and quickly  MODBUS® TCP/IP Ethernet connection lets you interface directly with a network server or laptop computer for greater productivity  Increased valve current enables greater flexibility when selecting compatible solenoid valves. Time-sharing samples helps eliminate errors between analyzers and provides a precise comparison of relative values between four or more streams. For example, a single sodium analyzer, alternating between condensate polisher inlet and outlet, can resolve the onset of exhaustion with fractional ppb precision. The onset may otherwise be masked by the normal range of variation with independent analyzers. Colorimetric analyzers are subject to upscale zero drift due to cell fouling. Time-sharing samples permits visual inspection by identifying relative zero and exposing zero shift when both values migrate upscale by equivalent amounts. Relative zero can be re-established without servicing the analyzer. Sentry's Sample Sequencer 5 is capable of operating in a continuous or batch mode. The analyzer outputs are connected to the Sample Sequencer where various individual stream signal outputs are available including: • Digital outputs for point number indication • Individual stream analog output signals with track and hold • Digital transmission via TCP/IP Ethernet connection • Embedded security protocols With its MODBUS® TCP/IP capability, one can connect easily to a network or PC via an ethernet cable, enabing remote monitoring of one or more sequencers. Individually programmable sample timers and custom sequence allows the sequencer to conform to your unique sampling requirement. A built-in data logger allows values to be stored on a removeable SD memory card. Any sample points not being used can time-share up to four analyzers. Manifold Sample Valve (4 or 8 stream) assures a representative sample. Please reference Bulletin 5.5.20. An easy-to-use touchscreen display shows user configurable sample names and analyzer descriptions; analyzer readings displayed in engineering units; and the status of each analysis.

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SPECIFICATIONS Ma ximum Number of Samples: Ma ximum Number of Analyzers: Power: • Input Voltage: 100 - 240 VAC • Frequency Range: 50/60 Hz • Input Current: 1 A / 115 V 0.72 A / 230 V Inputs from Analyzer: • Four (4) analog inputs: 4-20 mA (100 Ohm load) • Four (4) digital inputs for end-of-analysis indication • Four (4) digital inputs for calibration indication • Four (4) digital inputs for analyzer system alarm indication Nominal Accuracy: • Analog Inputs: • Analog Outputs: ± 0.2% full scale ± 0.2% full scale Resolution: • Analog Inputs: • Analog Outputs: 10 µA/Least Significant Bit 10...

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